.rui-tabbar-content{
  width: 100%;
  height: calc(100vw / 7.5);
  background-color: #fff;
  box-sizing: border-box;
  border-top: 1px solid #e1e1e1;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 999;
}